Author:Sefara, Tshephisho J; Modupe, AbiodunDate:Nov 2019The impressive improvement in performance obtained using neural networks for automatic speech recognition (ASR) have motivated the application of neural networks to other speech technologies such as speaker, emotion, language, and gender ...Read more
Author:Wright, CDate:2009This article asks just how harmful are our solar UV rays? It explains what previous researches tell us about how much UV radiation our children are likely to receive and what are the health risks.Read more
Author:Beyers, RDate:Apr 2007The Young Engineers of South Africa Programme (YESA) also endorses the e-Education and the Science and Technology White Papers. The main focus area will be on Information Communication Technologies (ICT) in education and the way that they can ...Read more
Author:Maaza, M; Diallo, A; Zongo, S; Mthunzi-Kufa, Patience; Soboyejo, W; Alqaradawi, S; Rehman, SDate:Dec 2014The intensity-dependent refractive index n(sub2) and the nonlinear susceptibility X(sup3) of Hibiscus Sabdariffa dye solutions in the nanosecond regime at 532 nm are reported. More presicely, the variation of n(sub 2), ß, and real and imaginary ...Read more
Author:Bickerton, IBDate:Dec 1982This report provides historical information on the Zeekoevlei. The Zeekoe canal at present constitutes a public health hazard, particularly where it passes under the Baden Powell Drive bridge and flows across the beach into the sea. Drainage ...Read more
Author:Long, Craig S; Loveday, Philip W; Forbes, ADate:Apr 2012Piezoelectric bimorph- or unimorph-type deformable mirrors are commonly used in adaptive optics to correct for time-dependent phase aberrations. In the optics community, the surface deformations that deformable mirrors are required to achieve, ...Read more
Author:Long, Craig S; Loveday, Philip W; Forbes, ADate:Apr 2012Piezoelectric bimorph- or unimorph-type deformable mirrors are commonly used in adaptive optics to correct for time-dependent phase aberrations. In the optics community, the surface deformations that deformable mirrors are required to achieve, ...Read more
Author:Bhaumik, M; Maity, Arjun; Brink, HGDate:Dec 2020Zero valent nickel nanoparticles (Ni0 NPs) have exhibited potential applicability in various fields including, chemical cells, fuel cells and catalysis. Alike zero valent iron NPs, Ni0 NPs and their composite nanostructures would have great ...Read more
Author:Meijer, M-C; Dala, LDate:Aug 2015An aeroelastic prediction framework in MATLAB with modularity in the quasi-steady aerodynamic methodology is developed. Local piston theory (LPT) is integrated with quasi-steady methods including shock-expansion theory and the Supersonic ...Read more
Author:Viljoen, A; Steyn, GJ; Van Vuren, JHJ; Wade, PWDate:May 2003The aim of this study was to assess the sensitivity of early life stages of Sharp tooth catfish, Clarias gariepinus (Burchell), to determine which stage to use during effluent assessment. The target water quality of zinc was used ranging from ...Read more
Author:Mphahlele, NDate:Sep 2010The main aim of this presentation is to show the improvement in cell performance and the long term stability of DSCs by utilizing dye (metallophthalocyanines) that absorb light at Visible region, integrated with carbon nanotubes to increase ...Read more
Author:Thwala, Melusi; Musee, N; Wepener, VDate:Sep 2012The authors present evidence of free radical activity and resultant anti-oxidative defence in Spirodela plants after exposure to 0.01-1000 mg/L of ZnO and Ag nanoparticles (NPs) over 96-h and 14-d. The quantification of reactive nitrogen and ...Read more
Author:Thwala, Melusi; Musee, N; Wepener, VDate:Sep 2012The authors present evidence of free radical activity and resultant anti-oxidative defence in Spirodela plants after exposure to 0.01-1000 mg/L of ZnO and Ag nanoparticles (NPs) over 96-h and 14-d. The quantification of reactive nitrogen and ...Read more
Author:Mukongo, T; Maweja, K; Wa Ngalu, B; Mutombo, I; Tshilombo, KDate:2009Zinc containing flue dusts generated during a copper matter smelting process in a water-jacket furnace was leached in a zinc electro winning return solution at 55 °C. Ninety percent of the metal was dissolved after 2 h of treatment. The ...Read more
Author:Diez, IA; Govender, Ireshyn S; Naicker, Previn; Stoychev, Stoyan H; Jordaan, J; Jensen, ONDate:Apr 2020Phosphopeptide enrichment is an essential step in large-scale, quantitative phosphoproteomics studies by mass spectrometry. Several phosphopeptide affinity enrichment techniques exist, such as Immobilized Metal ion Affinity Chromatography ...Read more